Data Signal Circuit between Radio Receiver and Extension Module [09/2014 - ]: Procedure
- CHECK NAVIGATION WIRE
- Disconnect the R5 radio and display receiver assembly connector.
- Disconnect the R2 stereo component tuner assembly connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition R2-1 (USV4) - R5-1 (USV4) Always Below 1 Ω R2-2 (US4-) - R5-2 (US4-) Always Below 1 Ω R2-3 (US4+) - R5-3 (US4+) Always Below 1 Ω R2-4 (UGD4) - R5-4 (UGD4) Always Below 1 Ω R2-5 (USG4) - R5-5 (USG4) Always Below 1 Ω R2-1 (USV4) - Body ground Always 10 kΩ or higher R2-2 (US4-) - Body ground Always 10 kΩ or higher R2-3 (US4+) - Body ground Always 10 kΩ or higher R2-4 (UGD4) - Body ground Always 10 kΩ or higher R2-5 (USG4) - Body ground Always 10 kΩ or higher TEXT IN ILLUSTRATION*a Front view of navigation wire connector
(to Radio and Display Receiver Assembly)*b Front view of navigation wire connector
(to Stereo Component Tuner Assembly)
NG → See step 3
OK → See step 2
- PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to PROBLEM SYMPTOMS TABLE [09/2014 - ]
- REPLACE NAVIGATION WIRE. Refer to REMOVAL [09/2014 - ]